我有擅长IE11的CSS代码，但似乎不擅长IE8。我已经尝试使用：
<!DOCTYPE html>
<meta http-equiv="X-UA-Compatible" content="IE=9; IE=8; IE=7; IE=EDGE" />
但效果不佳。边距，边框和功能区类别无效。
要添加一些信息，这是CSS：
body{
background-image:url(images/bg4.jpg);
background-repeat:no-repeat;
font-family: 'Montserrat', Arial;
font-size: 1em;
background-size:100%;
}
.all{
right: 100px;
bottom: 20px;
position: absolute;
}
h2{
text-align: center;
color: #F1F2F4;
text-shadow: 0 1px 0 #000;
}
a{
text-decoration: none; color: #EC5C93;
}
.ribbon{
background: rgba(200,200,200,.5);
width: 50px;
height: 70px;
margin: 0 auto;
position: relative;
top: 19px;
border: 1px solid rgba(255,255,255,.3);
border-top: 2px solid rgba(255,255,255,.5);
border-bottom: 0;
border-radius: 5px 5px 0 0;
box-shadow: 0 0 3px rgba(0,0,0,.7);
}
.ribbon:before{
content:"";
display: block;
width: 15px;
height: 15px;
background: #4E535B;
border: 4px solid #cfd0d1;
margin: 18px auto;
box-shadow: inset 0 0 5px #000, 0 0 2px #000, 0 1px 1px 1px #A7A8AB;
border-radius: 100%;
}
.login{
background: #F1F2F4;
border-bottom: 2px solid #C5C5C8;
border-radius: 5px;
text-align: center;
color: #36383C;
text-shadow: 0 1px 0 #FFF;
max-width: 400px;
padding: 10px 40px 5px 40px;
box-shadow: 0 0 5px #000;
}
.login:before{
content:"";
display: block;
width: 70px;
height: 4px;
background: #4E535B;
border-radius: 5px;
border-bottom: 1px solid #FFFFFF;
border-top: 2px solid #CBCBCD;
margin: 0 auto;
}
.font{
font-size: 1.4em;
margin-top: 5px;
margin-bottom: 10px;
color: #191970;
font-weight: bold;
}
p{
font-family:'Helvetica Neue';
font-weight: 300;
color: #7B808A;
margin-top: 0;
margin-bottom: 30px;
}
input{
height: 30px;
background: transparent;
border: 2px solid gray;
box-sizing: border-box;
color: #71747A;
text-shadow: 0 1px 0 #FFF;
border-radius: 5px;
}
input:focus{
outline: none;
}
button{
margin-top: 20px;
display: block;
width: 30%;
line-height: 1.1em;
background: #0066FF;
border-radius: 5px;
border:0;
border-top: 1px solid #0066FF;
box-shadow: 0 0 0 1px #0066FF, 0 2px 2px #0066FF;
color: #FFFFFF;
font-size: 1em;
text-shadow: 0 1px 2px #21756A;
margin-left:155px;
}
HTML在这里：
<?php
session_start();
?>
<html>
<head>
<title>Optis Appraisal System</title>
<link href='login.css' rel='stylesheet' type='text/css'>
</head>
<script src="Plugins/placeholders.jquery.min.js"></script>
<body>
<div class="all">
<div class="ribbon"></div>
<div class="login">
<br/><img src="images/optis3.jpg"/> <div class="font">Appraisal System</div>
<p>Please login to start</p>
<form method="post" action="login.php">
<table width=100%>
<tr>
<td>Username</td>
<td><input type="text" name="login"></td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="password"></td>
</tr>
</table>
<center>
<button name=commit>Login</button>
</center>
</form>
</div>
<footer>
<center>
<font size="2" color="black"><br/>
Developed by: <br/>
anjomarc_topacio | mark.adriane | nica.dizon <br>
Copyright 2014 © Management Information System
</font>
</center>
</footer>
</div>
</body>
</html>
您对如何解决这个问题有任何想法吗？我非常需要您的帮助。谢谢！
最佳答案
有两种处理方法（ie8中将不支持css3属性，例如box-shadow，border-radius）。
1）您可以将hack用于ie8：
要在CSS中定位Internet Explorer 8及以下版本，请在要应用的样式的末尾附加“ 9”。例如
div {
border: 2px solid #aaa; /* for all browsers */
border: 2px solid #f009; /* IE8 and below - red border */
}
.element {
margin-bottom: 20px;
margin-bottom: 10px\9; /* IE8 */
}
2）在您的HTML中使用条件语句：
<!--[if lte IE 9]>
Your IE8 and below HTML code here.
Perhaps importing a specific style sheet.
<![endif]-->
例如：
<!--[if lte IE 7]> <html class="ie7"> <![endif]-->
<!--[if IE 8]> <html class="ie8"> <![endif]-->
<!--[if IE 9]> <html class="ie9"> <![endif]-->
<!--[if !IE]><!--> <html> <!--<![endif]-->
样式：
.element {
margin-bottom: 20px;
}
.ie7 .element {
margin-bottom: 10px;
}
.ie8 .element {
margin-bottom: 15px;
}
关于html - CSS在IE11中有效，但在IE8中无效，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/26477572/